find a cause and effect relationship between IV and DV and to measure the extent of the effect
1 of 10
what are the 4 diff types of experiment? explain them
1. laboratory experiment- controlled settings, manipulates the IV, measures the DV, PP know they are being experimented
2. field experiments- natural conditions, manipulates the IV, measures the DV, PP don't-
2 of 10
continuing w previous card
-know they're being experimented
3. natural experiments- natural conditions, IV is naturally occurring ie earthquake, measures the DV, exp group usually compared to a control group
3 of 10
continuing w previous card
4. quasi experiments- controlled/natural conditions, IV is a difference between people ie gender, measures DV
4 of 10
name the evaluations of lab experiments
+high control over extraneous variables which could effect result of DV, increasing internal validity and establishing a better cause/effect rs
-lack ecological validity cut of the artificial nature, ungeneralisable and mundane realism, PP also watched
5 of 10
name the evaluations of field experiments
+high level of ecological validity, representative of every day life (-less control over extraneous variables which impact DV)
-ethical issues, no informed consent from PP, privacy is breached
6 of 10
name the evaluations of natural experiments
+high external validity, real life issues that aren't manipulated (-extraneous variables can effect DV)
+unique info gained into real life situations, can look into interesting concepts of psychology that cant be done artificially due to practicality-
7 of 10
continuing w previous card
-restraints (-may be a very rare case so you cant generalise it).
8 of 10
name the evaluations of quasi experiments
-PP cant be randomly allocated to removes issue of bias, level of IV to which they belong is predecided, so uncertain if IV or environmental factors caused it (+allow researchers to compare different types of people which cant be done regularly)
9 of 10
counting w previous card.
-methodological issues, in natural conditions there is no control over environment/extraneous variables, so unsure if factors such as age effect DV (-but its arguably better then controlled lab settings)
10 of 10
Other cards in this set
Card 2
Front
what are the 4 diff types of experiment? explain them
Back
1. laboratory experiment- controlled settings, manipulates the IV, measures the DV, PP know they are being experimented
2. field experiments- natural conditions, manipulates the IV, measures the DV, PP don't-
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